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> <channel><title>Comments on: Hydraulic Rupture Sparked Osprey Fire</title> <atom:link href="http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/feed/" rel="self" type="application/rss+xml" /><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/</link> <description>Online Defense and Acquisition Journal</description> <lastBuildDate>Fri, 12 Mar 2010 20:28:36 +0000</lastBuildDate> <generator>http://wordpress.org/?v=2.9.2</generator> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <item><title>By: RotaryWingPilot</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2344</link> <dc:creator>RotaryWingPilot</dc:creator> <pubDate>Thu, 09 Oct 2008 03:39:47 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2344</guid> <description>The degree of ignorance on display in parts of the comments section here is second only to the amount of willful stupidity.A couple of pointers for the peanut gallery.The Osprey transitions from VTOL to airplane in just over 10 seconds.The proprotors do adjust pitch, just like any modern helo or fixed wing aircraft.  What, do you really think that when it goes faster, the props are just turning at a greater rpm?To the one questioning the &quot;full-deployment&quot; of the Osprey--the Corps is almost done transitioning its 46 squadrons on the East Coast, and an Osprey squadron is beginning the aircraft&#039;s third combat deployment.  What else do you want?Mistakes have been made in the past in the Osprey program.  They&#039;ve been corrected, and now the Marine Corps has a capability no other armed force possesses.Some other noteworthy aircraft had problems initially--the B-29, F4U, and even the CH-46 come to mind.  They were solved, and all of those went on to make huge contributions to our nation&#039;s security.</description> <content:encoded><![CDATA[<p>The degree of ignorance on display in parts of the comments section here is second only to the amount of willful stupidity.</p><p>A couple of pointers for the peanut gallery.</p><p>The Osprey transitions from VTOL to airplane in just over 10 seconds.</p><p>The proprotors do adjust pitch, just like any modern helo or fixed wing aircraft.  What, do you really think that when it goes faster, the props are just turning at a greater rpm?</p><p>To the one questioning the “full-deployment” of the Osprey–the Corps is almost done transitioning its 46 squadrons on the East Coast, and an Osprey squadron is beginning the aircraft’s third combat deployment.  What else do you want?</p><p>Mistakes have been made in the past in the Osprey program.  They’ve been corrected, and now the Marine Corps has a capability no other armed force possesses.</p><p>Some other noteworthy aircraft had problems initially–the B-29, F4U, and even the CH-46 come to mind.  They were solved, and all of those went on to make huge contributions to our nation’s security.</p> ]]></content:encoded> </item> <item><title>By: OspreyTweek</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2316</link> <dc:creator>OspreyTweek</dc:creator> <pubDate>Mon, 06 Oct 2008 17:26:03 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2316</guid> <description>I see many complaints about how this aircraft has so many known issues and therefore should be scrapped.  I challenge anyone out there to find any aircraft in any branch of service that does not have any known issues.  I also issue the challenge to find me any aircraft that has not caused fatalities or injuries or even as many as the Osprey has caused.  This is a very good aircraft, our troops need the specialized support that this aircraft can provide.  I think this very incident highlights how well this aircraft is built; even with a catastrophic failure of a hydraulic system and nacelle fire, the aircraft was still able to make it to the ground safely, saving all of the lives on board.</description> <content:encoded><![CDATA[<p>I see many complaints about how this aircraft has so many known issues and therefore should be scrapped.  I challenge anyone out there to find any aircraft in any branch of service that does not have any known issues.  I also issue the challenge to find me any aircraft that has not caused fatalities or injuries or even as many as the Osprey has caused.  This is a very good aircraft, our troops need the specialized support that this aircraft can provide.  I think this very incident highlights how well this aircraft is built; even with a catastrophic failure of a hydraulic system and nacelle fire, the aircraft was still able to make it to the ground safely, saving all of the lives on board.</p> ]]></content:encoded> </item> <item><title>By: testpilot</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2308</link> <dc:creator>testpilot</dc:creator> <pubDate>Sun, 05 Oct 2008 18:00:28 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2308</guid> <description>It is not an option to not develop the Osprey.The US has to pay the price to keep weapons developers working on the technology for the US. It is far too embarassing and possibly dangerous to face new weapons in the theater.LM, NG, EADS, and Boeing are weapons builders to the highest bidder. They only create patriotic US propaganda when seeking US dollars.They can build it for the US or build it for someone else.</description> <content:encoded><![CDATA[<p>It is not an option to not develop the Osprey.</p><p>The US has to pay the price to keep weapons developers working on the technology for the US. It is far too embarassing and possibly dangerous to face new weapons in the theater.</p><p>LM, NG, EADS, and Boeing are weapons builders to the highest bidder. They only create patriotic US propaganda when seeking US dollars.</p><p>They can build it for the US or build it for someone else.</p> ]]></content:encoded> </item> <item><title>By: Paul Aguilar</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2294</link> <dc:creator>Paul Aguilar</dc:creator> <pubDate>Sat, 04 Oct 2008 19:15:19 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2294</guid> <description>Known problem in military aviation, know fix, fix has a kit - all forgotten or ignored.  Then, loss of life and/or property is dismissed.This is SNAFU for mil aviation.Now, who do you suppose is picking up the bill for repairs?  The Taxpayer.........hmmm, could be!Who&#039;s going to hang for the oversight....... no one above the paygrade of O5, GUARANTEED!</description> <content:encoded><![CDATA[<p>Known problem in military aviation, know fix, fix has a kit — all forgotten or ignored.  Then, loss of life and/or property is dismissed.</p><p>This is SNAFU for mil aviation.</p><p>Now, who do you suppose is picking up the bill for repairs?  The Taxpayer.….….hmmm, could be!</p><p>Who’s going to hang for the oversight.…… no one above the paygrade of O5, GUARANTEED!</p> ]]></content:encoded> </item> <item><title>By: DensityDuck</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2268</link> <dc:creator>DensityDuck</dc:creator> <pubDate>Fri, 03 Oct 2008 18:24:28 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2268</guid> <description>I&#039;ve read that the M60A2 was a great tank, we just needed to work the bugs out of it and train people in how to use it properly...</description> <content:encoded><![CDATA[<p>I’ve read that the M60A2 was a great tank, we just needed to work the bugs out of it and train people in how to use it properly…</p> ]]></content:encoded> </item> <item><title>By: Jayhawk 9er</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2258</link> <dc:creator>Jayhawk 9er</dc:creator> <pubDate>Fri, 03 Oct 2008 15:49:32 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2258</guid> <description>When the military Legal system learns how to write a sound contract, with teeth in it for looking out for the military (USMC, AF, Army, Navy, CG, MM, etc.) thrn this chapter and verse of the continuously ineptitude of that inability. The ones in uniform pay the price and the US Taxpayer takes it in the shorts. When a contract is well written the contractor pays a penalty for not delivering what is requested and to the standards prescribed, not the service or serviceman paying the ultimate price for ineptitude.</description> <content:encoded><![CDATA[<p>When the military Legal system learns how to write a sound contract, with teeth in it for looking out for the military (USMC, AF, Army, Navy, CG, MM, etc.) thrn this chapter and verse of the continuously ineptitude of that inability. The ones in uniform pay the price and the US Taxpayer takes it in the shorts. When a contract is well written the contractor pays a penalty for not delivering what is requested and to the standards prescribed, not the service or serviceman paying the ultimate price for ineptitude.</p> ]]></content:encoded> </item> <item><title>By: big mac</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2257</link> <dc:creator>big mac</dc:creator> <pubDate>Fri, 03 Oct 2008 13:27:41 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2257</guid> <description>personally i would have to say that it is a good air craft, and people is just going to have to deal with the kinks in the systems untill they can work then out and untill then there will allways be people bitching about it and when it is all said and done and it is in full service people are going to change there attitudes about it</description> <content:encoded><![CDATA[<p>personally i would have to say that it is a good air craft, and people is just going to have to deal with the kinks in the systems untill they can work then out and untill then there will allways be people bitching about it and when it is all said and done and it is in full service people are going to change there attitudes about it</p> ]]></content:encoded> </item> <item><title>By: dog</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2254</link> <dc:creator>dog</dc:creator> <pubDate>Fri, 03 Oct 2008 05:03:44 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2254</guid> <description>i think its a great aircraft once they they get the bugs out of it. i wish we had a craft like that when i was out of the country.</description> <content:encoded><![CDATA[<p>i think its a great aircraft once they they get the bugs out of it. i wish we had a craft like that when i was out of the country.</p> ]]></content:encoded> </item> <item><title>By: lb3983</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2252</link> <dc:creator>lb3983</dc:creator> <pubDate>Fri, 03 Oct 2008 02:55:01 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2252</guid> <description>I say we just go into the the future with our currently fine jet powered VTOL aircraft not much for transport but give them some time.V-22 sounds like a death trap to me.</description> <content:encoded><![CDATA[<p>I say we just go into the the future with our currently fine jet powered VTOL aircraft not much for transport but give them some time.V-22 sounds like a death trap to me.</p> ]]></content:encoded> </item> <item><title>By: David Valento</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2250</link> <dc:creator>David Valento</dc:creator> <pubDate>Thu, 02 Oct 2008 22:21:59 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2250</guid> <description>Usually when there&#039;s a 16 million dollar accident that&#039;s happened before, &amp; NO ONE got injured nor hurt, it happened for more then just &quot;accidental&#039;s sake.&quot; &quot;If &#039;it&#039;s too good to be true,&#039; then it prolly is..&quot; &lt;--statement in corilation w/the first/above statement. Basically, I think it was just an insurance scam, and that SOMEONE&#039;S pocket-book(s) got a little fat because of..</description> <content:encoded><![CDATA[<p>Usually when there’s a 16 million dollar accident that’s happened before, &amp; NO ONE got injured nor hurt, it happened for more then just “accidental’s sake.” “If ‘it’s too good to be true,’ then it prolly is..” &lt;–statement in corilation w/the first/above statement. Basically, I think it was just an insurance scam, and that SOMEONE’S pocket-book(s) got a little fat because of..</p> ]]></content:encoded> </item> <item><title>By: DensityDuck</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2248</link> <dc:creator>DensityDuck</dc:creator> <pubDate>Thu, 02 Oct 2008 21:45:08 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2248</guid> <description>*sigh*And we had solved the problem of high-speed-plus-VTOL back in the 1960s, with the AH-56.  Take a helicopter and put a prop on it.  Indeed, this is still being done today, with the Speedhawk, and Sikorsky&#039;s X2.Hell, I&#039;ll bet ten bucks that an X-45 derivative will fly and be in service before V-22 reaches full deployment...</description> <content:encoded><![CDATA[<p>*sigh*</p><p>And we had solved the problem of high-speed-plus-VTOL back in the 1960s, with the AH-56.  Take a helicopter and put a prop on it.  Indeed, this is still being done today, with the Speedhawk, and Sikorsky’s X2.</p><p>Hell, I’ll bet ten bucks that an X-45 derivative will fly and be in service before V-22 reaches full deployment…</p> ]]></content:encoded> </item> <item><title>By: Colin Clark</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2243</link> <dc:creator>Colin Clark</dc:creator> <pubDate>Thu, 02 Oct 2008 21:22:20 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2243</guid> <description>This comment from a reader who requested anonymity:&quot;I worked on the Osprey program for over eight years and this is minor compared to the other “known” problems with this aircraft. For instance, the heating elements in the proprotors all short out shortly after every installation on every aircraft, therefore, they cannot de-ice the blades in cold weather. The fix is that they don’t fly when it’s freezing.It takes 42 seconds to transform from airplane mode to helicopter mode, during this time, you are a sitting duck for enemy fire. 33 onboard computers fly this thing, if one goes offline you crash, as this ship cannot be flown manually. I could go on and on, but you get the point. This ship already has killed many, and will kill many more.&quot;</description> <content:encoded><![CDATA[<p>This comment from a reader who requested anonymity:</p><p>“I worked on the Osprey program for over eight years and this is minor compared to the other “known” problems with this aircraft. For instance, the heating elements in the proprotors all short out shortly after every installation on every aircraft, therefore, they cannot de-ice the blades in cold weather. The fix is that they don’t fly when it’s freezing.It takes 42 seconds to transform from airplane mode to helicopter mode, during this time, you are a sitting duck for enemy fire. 33 onboard computers fly this thing, if one goes offline you crash, as this ship cannot be flown manually. I could go on and on, but you get the point. This ship already has killed many, and will kill many more.”</p> ]]></content:encoded> </item> <item><title>By: Zarni</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2241</link> <dc:creator>Zarni</dc:creator> <pubDate>Thu, 02 Oct 2008 19:41:08 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2241</guid> <description>Scrap it? Typical attitude these days. If we scrapped every A/C that had problems when it was the first of a kind we would have no planes at all. Everyone wants everything to work right the first time and everytime. The crash that caused alot of deaths was due to pilot error. He was a C-130 pilot not a helo pilot and got into trouble in the helo mode and did what his fixed wing training said to do. He should have done what his helo training said to do.</description> <content:encoded><![CDATA[<p>Scrap it? Typical attitude these days. If we scrapped every A/C that had problems when it was the first of a kind we would have no planes at all. Everyone wants everything to work right the first time and everytime. The crash that caused alot of deaths was due to pilot error. He was a C-130 pilot not a helo pilot and got into trouble in the helo mode and did what his fixed wing training said to do. He should have done what his helo training said to do.</p> ]]></content:encoded> </item> <item><title>By: Maj Eric Dent</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2240</link> <dc:creator>Maj Eric Dent</dc:creator> <pubDate>Thu, 02 Oct 2008 19:35:58 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2240</guid> <description>Like many uninformed bloggers, this fellow is confused about the difference between Block A and Block B Ospreys. The &quot;B&quot; in &quot;MV-22B&quot; does NOT denote Block B. All MV-22 Ospreys currently in operation are designated MV-22B, regardless of whether they are Block A or Block B. This incident occurred in a Block A aircraft flown by our training squadron (which ONLY
operates Block A&#039;s).It is unfortunate to sustain damages to any of our aircraft, but we were ahead of the curve on this particular engineering problem and already in the process of making the necessary mods when this incident occurred. Soon after, ALL Block A and Block B MV-22B Ospreys received the modifications described below.a) Larger, thicker-walled titanium hydraulic lines leading to the EAPS have been installed that are capable of sustaining the hydraulic pressure spikes that an EAPS malfunction could cause.b) Hydraulic lines have been re-routed to eliminate bends that potentially place the lines under increased stress and could reduce their ability to withstand excessive spikes in pressure.c) In-line shutoff valves that detect leaks in the system and immediately shut off the flow of hydraulic fluid, minimizing fluid loss have been
incorporated.d) The capacity of the annulus, the area in the lower nacelle designed to catch and contain any fluid leaks, has been increased.e) New drain lines out of the nacelle have been installed to more rapidly drain any leaked fluids and carry them out of the nacelle, past the IR suppressor and away from any potential ignition source.ALL Ospreys now have the modifications and they have also been fully incorporated into the V-22 production line so that new aircraft do not
require further modification after leaving the factory. This is a success story typically painted with a black brush by the armchair critics.
Just by coincidence, this is also the one year anniversary of our incredibly
successful Osprey combat deployments to Iraq. The proof is in the performance.</description> <content:encoded><![CDATA[<p>Like many uninformed bloggers, this fellow is confused about the difference between Block A and Block B Ospreys. The “B” in “MV-22B” does NOT denote Block B. All MV-22 Ospreys currently in operation are designated MV-22B, regardless of whether they are Block A or Block B. This incident occurred in a Block A aircraft flown by our training squadron (which ONLY<br
/> operates Block A’s).</p><p>It is unfortunate to sustain damages to any of our aircraft, but we were ahead of the curve on this particular engineering problem and already in the process of making the necessary mods when this incident occurred. Soon after, ALL Block A and Block B MV-22B Ospreys received the modifications described below.</p><p>a) Larger, thicker-walled titanium hydraulic lines leading to the EAPS have been installed that are capable of sustaining the hydraulic pressure spikes that an EAPS malfunction could cause.</p><p>b) Hydraulic lines have been re-routed to eliminate bends that potentially place the lines under increased stress and could reduce their ability to withstand excessive spikes in pressure.</p><p>c) In-line shutoff valves that detect leaks in the system and immediately shut off the flow of hydraulic fluid, minimizing fluid loss have been<br
/> incorporated.</p><p>d) The capacity of the annulus, the area in the lower nacelle designed to catch and contain any fluid leaks, has been increased.</p><p>e) New drain lines out of the nacelle have been installed to more rapidly drain any leaked fluids and carry them out of the nacelle, past the IR suppressor and away from any potential ignition source.</p><p>ALL Ospreys now have the modifications and they have also been fully incorporated into the V-22 production line so that new aircraft do not<br
/> require further modification after leaving the factory. This is a success story typically painted with a black brush by the armchair critics.<br
/> Just by coincidence, this is also the one year anniversary of our incredibly<br
/> successful Osprey combat deployments to Iraq. The proof is in the performance.</p> ]]></content:encoded> </item> <item><title>By: D0D Conny</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2239</link> <dc:creator>D0D Conny</dc:creator> <pubDate>Thu, 02 Oct 2008 19:31:15 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2239</guid> <description>The PSI Spec has to be high to overcome centrifugal force created by the 38ft rotors as it transitions from vertical to horizontal flight mode.The stress factors on this aircraft is greater than any produced on other aircraft.Failures will occur until this factor can be reduced.</description> <content:encoded><![CDATA[<p>The PSI Spec has to be high to overcome centrifugal force created by the 38ft rotors as it transitions from vertical to horizontal flight mode.The stress factors on this aircraft is greater than any produced on other aircraft.Failures will occur until this factor can be reduced.</p> ]]></content:encoded> </item> <item><title>By: JCitizen</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2236</link> <dc:creator>JCitizen</dc:creator> <pubDate>Thu, 02 Oct 2008 18:41:17 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2236</guid> <description>If I were a marine, I&#039;d rather use the fantastic performance of this aircraft, despite its misgivings, anyday than trade my life to the certainty of becoming a victim of groundfire.I pity the enemy that will face this system in combat! The capability to swoop in fast and deploy like lightning is just too overwhelming to ignore.</description> <content:encoded><![CDATA[<p>If I were a marine, I’d rather use the fantastic performance of this aircraft, despite its misgivings, anyday than trade my life to the certainty of becoming a victim of groundfire.</p><p>I pity the enemy that will face this system in combat! The capability to swoop in fast and deploy like lightning is just too overwhelming to ignore.</p> ]]></content:encoded> </item> <item><title>By: Dave Hassett</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2234</link> <dc:creator>Dave Hassett</dc:creator> <pubDate>Thu, 02 Oct 2008 17:34:03 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2234</guid> <description>I believe, the Osprey&#039;s hydralic system operational psi spec is the highest that has ever been installed in a military aircraft. There were some concerns voiced about this earlier in the aircraft&#039;s development and perphaps it is a real concern.  If I remember they needed to push the system to such a high psi in order to allow the cycling of the powerplants to/from vertical</description> <content:encoded><![CDATA[<p>I believe, the Osprey’s hydralic system operational psi spec is the highest that has ever been installed in a military aircraft. There were some concerns voiced about this earlier in the aircraft’s development and perphaps it is a real concern.  If I remember they needed to push the system to such a high psi in order to allow the cycling of the powerplants to/from vertical</p> ]]></content:encoded> </item> <item><title>By: R. Richardson</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2232</link> <dc:creator>R. Richardson</dc:creator> <pubDate>Thu, 02 Oct 2008 17:10:25 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2232</guid> <description>Aside from the fact that this is an unsafe aircraft, is the military still using hydralic fluid such as 5606 that will burn?  The airlines have been using a fire resistant fluid for as long as I can remember, and I worked on these airliners since 1965.</description> <content:encoded><![CDATA[<p>Aside from the fact that this is an unsafe aircraft, is the military still using hydralic fluid such as 5606 that will burn?  The airlines have been using a fire resistant fluid for as long as I can remember, and I worked on these airliners since 1965.</p> ]]></content:encoded> </item> <item><title>By: phrgflyer</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2231</link> <dc:creator>phrgflyer</dc:creator> <pubDate>Thu, 02 Oct 2008 17:02:51 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2231</guid> <description>I just see a bunch of naysayers posting about the MV-22.  The XV-15 first flew in the 1970&#039;s after everyone said that the aircraft was unsafe.  It seems that, yes, there are some problems with the MV-22, but, like with the CH-46A model that broke apart in flight and while landing and caused even more casualties that this aircraft has, was given a chance to prove what it was capable of doing.</description> <content:encoded><![CDATA[<p>I just see a bunch of naysayers posting about the MV-22.  The XV-15 first flew in the 1970’s after everyone said that the aircraft was unsafe.  It seems that, yes, there are some problems with the MV-22, but, like with the CH-46A model that broke apart in flight and while landing and caused even more casualties that this aircraft has, was given a chance to prove what it was capable of doing.</p> ]]></content:encoded> </item> <item><title>By: Don Zweifel</title><link>http://www.dodbuzz.com/2008/09/30/hydraulic-rupture-sparked-osprey-fire/comment-page-1/#comment-2230</link> <dc:creator>Don Zweifel</dc:creator> <pubDate>Thu, 02 Oct 2008 16:51:22 +0000</pubDate> <guid
isPermaLink="false">http://www.dodbuzz.com/?p=1468#comment-2230</guid> <description>Most rotary wing AC&#039;s have variable pitch rotors which as a consequence allows a change in the angle of attack or pitch. And most fixed wing prop-driven AC&#039;s have variable pitch propellors which provide an opportunity to increase &#039;bite,&#039; i.e., on take-off one increases the angle of attack... once airborne one decreases the A of A for better fuel economy equalling better aerodynamic efficiency.  The Osprey should be retrofitted with this feature to enable it to make a much faster transition from VTOL thereby reducing its vulnerability to interdiction. Controllability is subsequently improved with an increased angle of attack.The Osprey would be a much improved platform with this retrofit.</description> <content:encoded><![CDATA[<p>Most rotary wing AC’s have variable pitch rotors which as a consequence allows a change in the angle of attack or pitch. And most fixed wing prop-driven AC’s have variable pitch propellors which provide an opportunity to increase ‘bite,’ i.e., on take-off one increases the angle of attack… once airborne one decreases the A of A for better fuel economy equalling better aerodynamic efficiency.  The Osprey should be retrofitted with this feature to enable it to make a much faster transition from VTOL thereby reducing its vulnerability to interdiction. Controllability is subsequently improved with an increased angle of attack.</p><p>The Osprey would be a much improved platform with this retrofit.</p> ]]></content:encoded> </item> </channel> </rss>
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